Precision Tubes For Car Industry Precision Tubes For Car Industry Standard:DIN 2391, EN10305-1, EN10305-4 Steel Grade:10#(st35),20#(st45),35#(st55),45#(st45),16Mn(st52), E215, E235, E355 Size Range:OD4.0~OD76.0 Delivery Condition:NBK,GBK,BK,BKS,BKW...
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